The images above were captured with a phone from projections inside the cardboard box camera, or camera obscura. The camera obscura is made up of two rectangular boxes, one with a lens taped to the end, and the other with tracing paper. The lens (a 20mm concave magnifying glass lens) projects the image upside down on to the tracing paper. I held my phone inside the larger box to capture these images. With this set up, your'e able to slide the small box in and out of the open end to adjust focus.